Water-based polyurethane dispersion is a type of polyurethane that is dispersed in water. It is commonly used in coatings and adhesives and offers advantages such as lower VOC emissions, reduced flammability, and easier cleanup compared to solvent-based polyurethane. It is widely used in applications like wood coatings, leather finishing, textile coatings, and adhesives, providing a clear finish and adjustability in terms of gloss, flexibility, and hardness according to specific requirements.
Hydrolysis in polyurethane is a chemical reaction in which water breaks down the polyurethane polymer chain. This can weaken the material, reduce its mechanical properties, cause swelling, and decrease durability. Manufacturers use various methods to minimize the effects of hydrolysis in polyurethane products.
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For Water-Based PUD:
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